Valve



March 2 1926.

i J. C. REYNOLDS VALVE Filed Dec. 29, 1924 Patented Mar. 2, 1926.

JOSHUA C. REYNOLDS, F LOUISVILLE, KENTUCKY.

VALVE.

Application filed December 29, 1924. Serial No. 758,771.

To all 'u2/7mm it may concern.'

lle-it known that I, .Tosrrini (l. ltitYNoLns, a citizen o'llv the lUnited States, residing at -Louisville, in the (-.ounty oi" Jefferson and State oi Kentucky, have invented certain new and useful Improvements .in Valves, of which the following is a specification.

This Linvent-ion relates toi improvements in check valves and more particularly to that type past which air or other vtluid is to be delivered, under pressure, to a container with which the valve is associated, and which will prevent the escape of the air or other Afluid 'from the said container, and while the valve euibodying the invention is designed primarily tor use upon compressed air tanks, it may equally well be employed in couuer-,tion with pneumatic tire tutes and various other chau'ibers, containers, etc., to which a iroi' gaseous fluids are to be supplied under pressure and stored, i

(lne ot the objects ot the present inventiou is to provide a valve o'li the type rei'crrcd to which will operate in such a manuer as to permit ot the 'tree passage of air or other gaseous Vf'luid under pressure past its valve element and will, on the other hand. etleetually prevent any escape of air or other Vfluid so delivered to the tank or other c 'outainer equipped with the valve.

Another object oit the invention is to provide a valve which will. be so constructed that sticking of the valve element is positively precluded so that the tube or other means for supplying the air or other fluid under pressure past the valve, may be removed without the necessity of exercising any care or paying any attention whatsoever to the valve.

Another object ot the invention is to provide an extremely simple vconstruction oit valve of the check type embodying a minimum number of parts oll such form and construction that they may be manufactured at a very low cost and readily and quickly assembled, and in this connection the invention likewise contemplates so constructing the valve that its parts may be readily disassembled in the event Iit becomes necessary to repair or replace any of the said parts.

In the accompanying drawings:

Figure 1 is a view in elevation of the valve embodying the invention installed upon a pressure tank.

Figure 2 is a vertical diametric sectional view through the valve.

Thevalve comprises a casing which is' inf A dic-ated in general by the numeral 1 and is in the lorm ot an integral substantially cylindrical body which is exteriorly threaded. at ,one end as indicated by the numeral 2 so as to adapt its said end topbe fitted into a threaded boss 3 upon the wall of the tank, as indicated by the numeral 41;, or into any other socket `provided for its reception, and in order that the application ot the Vcasing to the tank or other container may be facilitated, the valve body 1 is formed exteriorly above its threaded portion 2,4 with a polygonal. portion 5 for the application thereto of a wrench. The valve body is likewi eXteriorly threaded at its upper end as indicated by the numeral 6 so that the couw pling member 7 oi a .Huid pressure supply tube or hose 8 may be connected to thisend of thevalve or, when the tank has been supplied with the required volume oli" air or other gaseous fluid under pressure, a dust cap 9 may be fitted to this end of the valve casing, after removal oi the connection 7.

The valve body is formed with an axial bore 1() and this bore is reduced Iin diameter at the intermediate portion ot its length, as indicated by the numeral 11, and 'further reduced indiameter, at its upper end, as indicated by the numeral 12. "lhe wall oli the reduced portionll `is threaded for a portion ot' kits length as indicated by the numeral 13, and the said wall oi the said reduced portion 11, at and adjacent its juncture with the lower end ot the reduced portion 12, is of concave form so as to provide a valve seat indicated by the numeral 14s, located at the lower end of the said reduced portion 12. Removably .fitted into the threaded portion 13 of the bore of the casing is a valve retaining member 15 comprising a substantially cylindrical body eXteriorly threaded as at 16 to lit the threads ,13 and provided with an axial bore 1.7 which is preferably of the'same diameter as the reduced portion 12 of the bore of the valve casing. In order that the retaining member 15 may be conveniently threaded into the valve casing 1, and likewise for a purpose to be presently explained, thesaid retaining member is formed at each end with a dia metric groove indicated by the numeral 18,

in which. the bit of a screw driver may be y engaged in fitting the member 1n the valve casing and removing the same.

The valve proper comprises a spherical ball 19 of steel or other metal, depending upon the nature of the gaseous Huid to be forced into the tank under pressure, andv said valve element is housed` Within the re duced portion 11 of the casing and retained therein by the retaining meinbei` 15. It willl be observed that inasmuch asone ofthe grooves`18 is providedin`each`end ofthe retaining member 15, the retaining mein ber maybe inserted either end"'iirs`t into the casing' and yet'i'f, after'th'e valvehas been in use a'foonsiderable period` of time, it should be found ythat that end ot theinomber'which i'sjpresented toward the valve" vseat 14lhas b comebattered oi" Worn, theineinber may be"removed and reversed end Yfor end and relitted into the casing. previously statedftle groove 18 servesnot only to ac-A commodate the'bit of a screw driverivhere by'the retaining member may be, threaded into place in the casing, but also serves another function, and by referencey to Figure 2 it Will be observed thativhile the valve '19 normallyoceupies the dotted line position shown' 'in rsaidV ligure, in vwhich position it will rest iirinly' against the seat 14 'and eie'ctually prevent'thefescape 'of the coin'- p'ressed gaseous Vfluid from thewtanlll, A"at each compression stroke of the pump 'em-` ployed in compressing 'the fluid anddeliveringthe saine to thetankl past'the' valve, the valve will move tov the tull 'line4 position shown in'the'said figure, in which position it Will momentarily rest upon the upper en d of 'the retaining meniber'and at the upper end'of the bore therein, the surface orl the valve contacting the corners of the Wall 'o-'i the groove'ivhich are next'adjacent the s aid upper'end of the bore 17. When the valve is in'this position, the bore 17 will notv be closedv for Athe air or other gaseous iuidmdelivered bythe 'compressing"apparatus will flow freely around the valve and through the groove 18`into and througlr'the bore 17 to thetalnk 4. 'It vvill also be observed by reference y,to Figure 2`, that the valve element 19 is of a diameter less 'th'antli'at otthereduced rportion -11 Yof 'the bore of thel 'valvel casing "andjin act, of such diameter that the' space between' the circumference of the valve seat.

ball and the Wall of said reduced portion 11 of the bore of the valve casing Will be equal in area to the cross sectional area of the porvtion 12 ofthe rboreof the valve easing or the bore 17 of' the retaining member, so that there is no appreciable resistance offered to the tree passage'off the Huid under pressure past the va ve and the effect is approximately the same as though a continuous bore were provided connecting the bores 1Q and 1T,- Therefore, the valve element does not materially obstruct the passage-'of introduced r`Huid under pressure and,- at the same time, when the pumping or compressing means ceasesvto operate "and the delivery pipe therefrom is disconnected from I the valve casing, the pressure of the air or other gaseousl 'fluid in the tank will serve to [irmly seat, the valve element and prevent. any cape olt such Huid.A

Having thus described the invention, what I claimis: y

4A valve comprising an elongated tubular body having its upper and lower end portions externally threaded and formed With an axially disposed bore, the lower portion of the bore being of greater diameter than the 'intein'iediateV portion thereof and the upper"portionA 4ot the bore being of less diameter than the said intermediate portion', the intermediate portion of said bore having al threaded portion and being formed with ak rounded upperend "formingA a cup-shaped valve seat. at its junction with the reduced upper end portion Vof thel bore, a valve ball support screwed into the threaded portion ofthe intermediate portion of s aid bore and formed with'a bore providing' comnninicag tioirbetiveen the intermediate portion and lou'er portion of ,the` rbore of said body, vthe upper and lower ends of said support being iornied with' radial lgrooves intersectingl its bore, and a valve ball in the intermediate portion of the bore of said body freely movable longitudinally therein 'from seating engagement with the upper-end of the valve 'support to seating 'engagement' With said In testimony whereof I aiiX my signature.

' L Cf REYNOLDS@ Si 

